Some operations of adding, deleting, modifying and querying the Yii2.0 advanced framework database, yii2.0 adding and deleting_PHP tutorial

Some operations of adding, deleting, modifying and querying the Yii2.0 advanced framework database, yii2.0 adding and deleting The yii2.0 framework is a relatively efficient framework developed by PHP, which integrates the author’s After a lot of effort, the following uses users as examples to explain in detail some basic addition, deletion, modification and search operations in the use of yii2. User::find()->all(); //Return all user data; User::findOne($id); //Return a piece of data with primary key id=1; User::find()->where([‘name’ => ‘ttt’])->one(); //Return a piece of data from [‘name’ => ‘ttt’]; User::find()->where([‘name’ => ‘ttt’])->all(); //Return all data of [‘name’ => ‘ttt’]; User::findBySql(‘SELECT * FROM user’)->all(); //Use sql statement to query all data in the user table; User::findBySql(‘SELECT * FROM user’)->one(); This method uses sql statement to query a piece of data in the user table; User::find()->andWhere([‘sex’ => ‘Female’, ‘age’ => ’18’])->count(‘id’); //Count the total number of items that meet the conditions; User::find()->one(); //Return a piece of data; User::find()->all(); //Return all data; User::find()->count(); //Return the number of records; User::find()->average(); //Return the average of the specified column; User::find()->min(); //Return the minimum value of the specified column; User::find()->max(); //Return the maximum value of the specified column; User::find()->scalar(); //Return the query results of the first row and first…

Looking for a class for adding, deleting, modifying and checking the database-php tutorial

php + mysql I know you must have hidden a lot Please beg me Reply to the discussion (solution) There are a lot of them online, why not search them. If you are lazy, you can download phpStudy. I used it when I first learned it. http://www.phpstudy.net/ Aren’t they all written according to the needs? I searched, but nothing is useful. I can’t find the data

Easy to understand Transformer

thinkphp, you found a problem related to the failure of adding, deleting, and modifying associated operations.

php Write your review! Come on, watch it all Member login | User registration Recommended reading version How to set variables in the context of Django Backend Development | Python Tutorial Python, Django Backend Development – Python Tutorial The example in the previous section simply returns a value. Many times it is also useful to set a template variable instead of a return value. That way, template authors can only use… [detailed] Crayon Shin-chan 2023-09-11 10:47:36 version Easily understand Transformer Transformer is a model that uses the attention mechanism to improve model training speed. For information on the attention mechanism, please refer to this article. Trasnformer can be said to be a deep learning model completely based on the self-attention mechanism, because it is suitable for… [detailed] Crayon Shin-chan 2023-09-11 10:47:07

Please use php+mysql to implement the code for adding, deleting, modifying and checking news information

Please use php+mysql to implement the code for adding, deleting, modifying, and checking news informationI am learning php+mysql. Please use php+mysql to implement the code for adding, deleting, modifying, and checking functions. If you can give it to me, I would be very gratefulEmail: [email&#160 ;protected]——Solution——————– You can know it by downloading the source code yourself. If you don’t know how to use Baidu, you can look at the examples written by others.

How to design curved text in CAXA

thinkphp, you found a problem related to the failure of adding, deleting, and modifying associated operations.

php Write your review! Come on, watch it all Member login | User registration Recommended reading php How to design curved text in CAXA How to design curve text in CAXA 1. Double-click to run the program; 2. Press the OK button in the pop-up dialog box to create a new A3 frame; 3. Select the ripple line; 4. Select the wave peak and change it to orthogonal mode; 5. Fill in the number at the second point 50. Repeat 3 times to draw a diagram of the wave… [detailed] Crayon Shin-chan 2023-09-11 09:47:28 php Understanding scope slots ###Why the value of slot-scope… [detailed] Crayon Shin-chan 2023-09-11 09:45:57

Can such a function be achieved without a framework and with pure PHP?  There are many pages with insert, delete, and modify functions. I only write one method of adding, deleting, and modifying, and other pages can also share this method.

Can such a function be achieved without a framework and with pure PHP? There are many pages with insert, delete, and modify functions. I only write one method of adding, deleting, and modifying, and other pages can also share this method.

Is it possible to achieve such a function using pure PHP without a framework? There are many pages with insert, delete, and modify functions. Just write one method of adding, deleting, and modifying. Other pages can also share this method.Can such a function be realized without a framework and pure PHP? There are many pages with insert, delete, and modify functions. Just write one method of adding, deleting, and modifying, and other pages can also share this method. I used to write one method per page and insert it into the database accordingly. The boss requires all pages to write one type, and then other pages can also use this insertion method to insert into the database. How to do it? Can it be achieved? The names and fields of the inserted data tables are different. How to implement it?——Solution Idea————— ——-Write a function or class, include the page you need to use, and just pass the parameters when calling. ——Solution Idea———————-Write Just a category. ——Solution Idea———————-Boss Said that there must be a difference, so there are parameters——Solution ideas——————– —Write a class and pass parameters in the method.

yii realizes adding, deleting, modifying and checking encyclopedia, yii encyclopedia_PHP tutorial

yii implements adding, deleting, modifying, and searching, yii encyclopedia 1. Data Access Object (DAO) Yii DAO is built on PHP Data Objects (PDO). It is an extension that provides unified data access for many popular DBMS, including MySQL, PostgreSQL, etc. Therefore, use Yii DAO, PDO extension and specific PDO database driver (such as PDO_MYSQL) Must be installed. Yii DAO mainly includes the following four categories: CDbConnection: Represents a database connection. CDbCommand: Represents a SQL statement executed through the database. CDbDataReader: Represents a forward-only stream of rows from a query result set. CDbTransaction: Represents a database transaction. 1. Establish a database connection To Establish a database connection and create a CDbConnection Instance and activate it. Connecting to a database requires a data source name (DSN) to specify connection information. Username and password may also be used. When an error occurs while connecting to the database (e.g. wrong DSN or invalid username/password), an exception will be thrown. $cOnnection=new CDbConnection($dsn,$username,$password); // Establish a connection. You can use try…catch to catch exceptions that may be thrown $connection->active=true; …… $connection->active=false; // Close connection The format of the DSN depends on the PDO database driver used. In general, the DSN contains the name of the PDO…

Parsing Extjs and PHP data interaction (adding, deleting, checking and modifying)_php skills

The code is as follows: //The search is not done yet. The data is out, but it cannot be displayed Index. php file The code is as follows: <?phpheader(“Content:text/html;charset=utf-8”);$link = mysql_connect(“localhost”,”root”,”123456″)or die(‘error’. mysql_error());mysql_select_db(“stu”,$link);mysql_query(‘set names utf8’);$sql = “select count(*) num from men”; $num = mysql_query($sql);$count = mysql_fetch_array($num);$start = $_POST[‘start’];$limit = $_POST[‘limit’];$sql2 = “SELECT * FROM men limit {$start},{$limit}”;/*if (!$_POST){ $sql2 = “SELECT * FROM member”;} else { $sql2 = “select * from member limit {$start},{$limit}”;}*/$data = array() ;$result = mysql_query($sql2);while(!!$info = mysql_fetch_array($result,MYSQL_ASSOC)){ $data[] = $info;} //$j = json_encode($data);$j = “{totalProperty:100,root:”.json_encode($data).”}”;echo $j; ?> The Add.php file is as follows: The code is as follows: <?phpheader(“Content:text/html;charset=utf-8”);$link = mysql_connect(“localhost” ,”root”,”123456″)or die(‘error’.mysql_error());mysql_select_db(“stu”,$link);mysql_query(‘set names utf8’);$ name = $_POST[‘username’];$pwd = $_POST[‘password’];$time = $_POST[‘regTime’];$email = $_POST[’email’ ];/*$name = ‘aaaa’;$pwd = ‘aaaa’;$time = ‘2011-12-31’;$email = ‘aaaa’ ;*/$sql = “INSERT INTO men (username,password,regTime,email) VALUES (‘{$name}’,'{$pwd}’,'{$time}’,'{$email} ‘)”;//mysql_query($sql)if (mysql_query($sql)){ echo ‘ok’;}?> The Del.php file is as follows: The code is as follows: <?phpheader(“Content:text/html;charset=utf-8”);$link = mysql_connect(“localhost”,”root”,” 123456″)or die(‘error’.mysql_error());mysql_select_db(“stu”,$link);mysql_query(‘set names utf8’);$id = $_POST[‘ id’];$sql = “DELETE FROM men WHERE id={$id}”;if (mysql_query($sql)){ echo 1;} else { echo 0;}?> Database file men.sqlDatabase name: stuTable name: menOkay Copy the following into a text document, then create a new stu database and import it. The code is as…

Some operations of adding, deleting, modifying and querying the Yii2.0 advanced framework database_PHP

The yii2.0 framework is a relatively efficient framework developed in PHP, which has gathered a lot of effort by the author. The following uses users as examples to explain in detail some basic addition, deletion, modification and search operations in the use of yii2. User::find()->all(); //Return all user data; User::findOne($id); //Return a piece of data with primary key id=1; User::find()->where([‘name’ => ‘ttt’])->one(); //Return a piece of data from [‘name’ => ‘ttt’]; User::find()->where([‘name’ => ‘ttt’])->all(); //Return all data of [‘name’ => ‘ttt’]; User::findBySql(‘SELECT * FROM user’)->all(); //Use sql statement to query all data in the user table; User::findBySql(‘SELECT * FROM user’)->one(); This method uses sql statement to query a piece of data in the user table; User::find()->andWhere([‘sex’ => ‘Female’, ‘age’ => ’18’])->count(‘id’); //Count the total number of items that meet the conditions; User::find()->one(); //Return a piece of data; User::find()->all(); //Return all data; User::find()->count(); //Return the number of records; User::find()->average(); //Return the average of the specified column; User::find()->min(); //Return the minimum value of the specified column; User::find()->max(); //Return the maximum value of the specified column; User::find()->scalar(); //Return the query results of the first row and first column of the value; User::find()->column(); //Return the value of the first column in the query result;…

yii, sql, adding, deleting, checking

yii ,sql, CRUD[color=#0000FF]1.$sql=”insert into tbl_user(`id`,`username`,`password`) values(null,’alu’,’123′); 2. $sql= “select * from tbl_user where id=1; 3. $sql= “update tbl_user set password=”123456″ where id=6”; 4. $sql= “delete from tbl_user where id=6;”; //Set character encoding mysql_query(“set names utf8”); $result=mysql_query($sql) or die(‘sql statement error, the prompt given by the system is:’.mysql_error()); 5. $num = mysql_num_rows($result) and $num=mysql_fetch_array($result); How should the above statement be written in the Yii framework? [/color] SQL Yii Addition, deletion, modification and query of data Frame Share to: ——Solution ——————–It seems to return I passed your post, please reply again: The utf8 encoding is written to the configuration file main.php: ‘db’=>array( ‘connectionString’ => ‘mysql:host=localhost;dbname=test’, ’emulatePrepare’ => true, ‘username’ => ‘root’, ‘password’ => ‘123’, ‘charset’ => ‘utf8’, // set encoding here ‘tablePrefix’ => ‘tbl_’, ), In the controller: $cOnn=Yii::app()->db; $command=$conn->createCommand(); Write the statement directly: $command->text=’select * from {{user}} where id=1′; $dataReader=$command->query(); Read data: foreach($dataReader as $row) { echo $row[‘name’]; } The writing method of INSERT, UPDATE and DELETE operation statements is similar to the above, but use execute: $rowCount=$command->execute(); returns the number of affected rows; ——Solution ———————In fact, isn’t it more convenient to use ActiveRecord for simple CRUD operations? $model = User::model()->findByPk(1); $model->password = ‘new password’; $model->save();——Solution ——————–Use the built-in method of…

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